Fractures and faults distribution and its effect on gas enrichment areas in Ordos Basin;

Main controlling factors for the vertical seal of faults;

Evaluation of vertical seal of main faults in k_1d_1 in the north of Wuerxun depression in accumulation period;

Fault physical modeling experiment and its application in the assessment of fault sealing of Xinzhuang oilfield,Henan,China;

Study of finite element on egfects of faults on ground stress field;

Characteristics and influencing factors of fault sealing in Pearl River Mouth Basin;

Influence of Fractures to Spatial Distribution of Fluid Potential and Its Research Methods;

Based on the statistical analysis of water-inrush data in Panxi Coalmine,this paper classifies the water inrush caused by fracture into two types: water inrush induced by conductive fracture and active fracture water inrush induced by mining.

Compulsive cut or explosion method are used when a fully-mechanized face across fracture or scouring zone,the technical parameters of this method are analyzed.

The following paper explains the definition of fractal,discusses the application of fractal theory in geology from earthquake,slope,debris flow,joint,crack and dislocation,and points out the problems needed to be solved by fractal theory and the theory s long term potential.

If the variation of the local wavelength goes beyond a critical value,the dislocations will appear at local stripe to make the local wavelength return to the average .

The topological charge of spiral will be changed when topological defect(dislocation) propagates to the center along the spiral.

Study of floor faultage's water invasion regularity mining on the top of water pressured;

Dynamic photoelastic investigations of the effect of geology faultage on underground structural spallation;

Realization of inphase axis location and abstraction of faultage layer identification.;